Comments for Sampling Plans

What are the advantages of different kinds of sampling? Which one is universal? On what basis preference is to be given? Does sampling plan depend on nature of sample also? What should be the CAPA for failure of selection of Sampling Plan?

Sampling is a complex methodology. Most companies use a C=0 or Ansi Z1.4 plan. Depending on the defect you can have different AQL (acceptable quality levels) which also affect sampling. I recommend investing in Snap Sampling Plans! software which can be found at this site. It leads you step by step through many different sampling plans and finds the best for your situation.